Shooting structure of a paint bullet gun

ABSTRACT

A shooting structure of a paint bullet gun. The paint bullet gun includes a main body and a handle. A gunlock and a controlling unit are disposed in the main body. An air source serves to fill air into the main body. A trigger is disposed in the handle for controlling the controlling unit to control the gunlock to reciprocally move within the main body. An activating chamber is formed in the main body. The activating chamber communicates with the air source via a vent. One end of the activating chamber communicates with a barrel. A bullet-dropping port is disposed on the activating chamber near the barrel to communicate with the activating chamber. The gunlock is disposed in the activating chamber. A space is defined between outer circumference of middle section of the gunlock and inner wall of the activating chamber. The space is movable along with the reciprocally movable gunlock to be aligned with the vent. One end of the gunlock is connected with the controlling unit. An air passage is formed in the gunlock. One end of the air passage extends out of the other end of the gunlock opposite to the controlling unit. The other end of the air passage extends to communicate with the space.

BACKGROUND OF THE INVENTION

The present invention is related to a shooting structure of a paint bullet gun. In the paint bullet gun, a gunlock is controlled to move forward or backward to control the drop of the paint bullet as well as control the intake of the air for shooting the paint bullet.

The shooting structures of the conventional paint bullet guns can be substantially divided into mechanical type and electronic type. A mechanical type or electronic type of trigger unit is used to control a striker and a gunlock for unblocking/blocking a bullet-dropping port. The striker controls a valve for taking the air into the gunlock for shooting the paint bullet dropping into the barrel of the paint bullet gun.

The conventional structure is quite complicated and has high failure ratio. In addition, the processing and assembling cost of the conventional paint bullet gun is very high. Therefore, a simplified structure of the paint bullet gun has been developed as shown in FIG. 5. The paint bullet gun 6 has a barrel 60 and a handle 9. An activating chamber 61 and a gun chamber 62 are formed in the barrel 60 to communicate with each other. A bullet-dropping port 63 is formed on the bullet tunnel 62, whereby a paint bullet can drop through the port 63 into the gun chamber 62. A pneumatic cylinder 64 is disposed in the activating chamber 61 near the gun chamber 62. A movable rod 65 is disposed in the pneumatic cylinder 64 for unblocking/blocking the bullet-dropping port 63. The movable rod 65 has an internal passage 651. An air reserving body 7 and a valve 8 are sequentially arranged in the activating chamber 61 near the pneumatic cylinder 64. A rear cap 66 seals rear end of the activating chamber 61. The air reserving body 7 has an air reservoir 71. One end of the air reservoir 71 is tapered to form an air passage 72 extending into the passage 651 of the movable rod 65. A valve rod 81 is disposed in the valve body 8. The valve rod 81 is controlled by the valve body 8 to move back and forth. A plug 82 is disposed at front end of the- valve rod 81 for unblocking/blocking a section communicating the air reservoir 71 with the air passage 72. The valve rod 81 is formed with an internal tunnel 83 communicating with the air reservoir 71. The rear cap 66 has an internal tunnel 661 one end of which communicates with the tunnel 83 of the valve rod 81. The other end of the tunnel 661 communicates with an air source. A trigger 91 is disposed in the handle 9 for controlling an IC board 92 for controlling the valve rod 81 of the valve body 8 to move back and forth.

By means of operating the trigger 91 of the handle 9, the valve rod 81 of the valve body 8 can be controlled to move forward, making the plug 82 block the section communicating the air reservoir 71 with the air passage 72. At this time, the air goes through the tunnel 83 of the valve rod 81 into the air reservoir 71 to push the movable rod 65 forward so as to block the bullet-dropping port 63. The trigger 91 can be also operated to retreat the valve rod 81. At this time, the plug 82 unblocks the section communicating the air reservoir 71 with the air passage 72. Under such circumstance, the air in the air reservoir 71 can go through the air passage 72 to shoot the paint bullet dropping into the gun chamber 62. After shooting the paint bullet, the movable rod 65 will move backward, permitting a second paint bullet to drop into the gun chamber 62 for next shot.

In the above paint bullet gun, the structure is simplified. However, the valve rod 81 for controlling intake of the air and the movable rod 65 for controlling blocking/unblocking of the bullet-dropping port are still separate components. This still leads to high processing and assembling cost.

Furthermore, the pneumatic cylinder 64 with the movable rod 65, the valve body 8 with the valve rod 81, the air reserving body 7 and the rear cap 66 are sequentially mounted into the activating chamber 61 of the barrel 60. When removing a broken bullet, it is necessary to detach the rear cap 66, the valve body 8, the air reserving body 7 and the pneumatic cylinder 64 one by one. This procedure is quite inconvenient.

Besides, the valve rod 81 for controlling intake of the air and the movable rod 65 for controlling blocking/unblocking of the bullet-dropping port are separate components. In the case that any of the two components fails, it will become impossible for the paint bullet gun to shoot the paint bullet. Therefore, the ratio of failure of the conventional paint bullet gun is higher.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a shooting structure of a paint bullet gun. The paint bullet gun includes only one single gunlock serving to unblock/block the bullet-dropping port and control the intake of the air for shooting the paint bullet. Therefore, the structure of the paint bullet gun is simplified and the manufacturing and assembling cost is greatly lowered. In addition, the ratio of failure of the paint bullet gun is reduced.

It is a further object of the present invention to provide the above shooting structure of the paint bullet gun. In the case that a broken bullet needs to be removed, a user only needs to unscrew the rear cap and take out the gunlock to remove the broken bullet. Therefore, it is quite convenient to disassemble the structure for removing the broken bullet.

According to the above objects, the shooting structure of the paint bullet gun of the present invention includes a main body and a handle. A gunlock and a controlling unit are disposed in the main body. An air source serves to fill air into the main body. A trigger is disposed in the handle for controlling the controlling unit. The controlling unit serves to control the gunlock to reciprocally move within the main body so as to control a paint bullet to drop into the main body and control the air of the air source for shooting the paint bullet. An activating chamber is formed in the main body. The activating chamber communicates with the air source via a vent. One end of the activating chamber communicates with a barrel. A bullet-dropping port is disposed on the activating chamber near the barrel to communicate with the activating chamber. The gunlock is disposed in the activating chamber. The gunlock is a bar body. A space is defined between outer circumference of middle section of the gunlock and inner wall of the activating chamber. The space is movable along with the reciprocally movable gunlock to be aligned with the vent. One end of the gunlock is connected with the controlling unit for controlling the gunlock to reciprocally move within the activating chamber. An air passage is disposed in the gunlock. One end of the air passage extends out of the other end of the gunlock opposite to the controlling unit. The other end of the air passage extends to communicate with the space.

The present invention can be best understood through the following description and accompanying drawings wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional assembled view of the present invention;

FIG. 2 is a perspective view of the gunlock of the present invention;

FIG. 3 is a sectional view showing that the gunlock of the present invention is retreated;

FIG. 4 is a sectional view showing that the gunlock of the present invention is forwarded; and

FIG. 5 is a sectional view of a conventional paint bullet gun.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 1 to 4. The present invention is related to a shooting structure of a paint bullet gun. The paint bullet gun has a main body 1 in which a gunlock 2 is disposed. The gunlock 2 is controlled by a controlling unit 3 to move back and forth for controlling loading of the paint bullets and controlling the air for shooting the paint bullets.

An activating chamber 11 and an air reservoir 12 are parallelly arranged in the main body 1. The activating chamber 11 communicates with the air reservoir 12 via a vent 15. An air source fills air into the air reservoir 12. One end of the activating chamber 11 communicates with a barrel 13. A bullet-dropping port 14 is disposed on the activating chamber 11 near the barrel 13 to communicate with the activating chamber 11. A paint bullet 5 can be dropped and loaded into the activating chamber 11. The gunlock 2 is disposed in the activating chamber 11 and controlled by the controlling unit 3 to reciprocally move within the activating chamber 11. The controlling unit 3 is mounted in the main body 1.

A handle 4 is disposed under the air reservoir 12 of the main body 1. In the handle 4 are arranged a trigger 41, a controlling IC 42 and a cell 43 for supplying power. A touch-controlled switch 44 is connected between the trigger 41 and the controlling IC 42. The controlling IC 42 is connected with the controlling unit 3 for controlling the same.

The gunlock 2 is a bar body slidably mounted in the activating chamber 11. An annular groove 21 is formed on outer circumference of middle section of the gunlock 2. A space 21 a is defined between the annular groove 21 and inner wall of the activating chamber 11. One end of the gunlock 2 is connected with the controlling unit 3. An air passage 22 is disposed in the gunlock 2. One end of the air passage 22 extends out of the other end of the gunlock 2 opposite to the controlling unit 3. The other end of the air passage 22 extends to a section of the gunlock 2, where the annular groove 21 is formed. The wall of this section is formed with several radial through holes 23 communicating the air passage 22 with the space 21 a. Several O-rings 24 are inlaid in outer circumference of the gunlock 2 to airtight abut against inner wall of the activating chamber 11 for avoiding leakage of air.

In this embodiment, the controlling unit 3 includes an electromagnetic valve 31 and a piston body 32. The electromagnetic valve 31 is mounted on one side of the air reservoir 12 of the main body 1. Intake lines communicate the electromagnetic valve 31 with the air reservoir 12 and the piston body 32. In addition, the electromagnetic valve 31 is connected with the controlling IC 42 in the handle 4 for controlling the electromagnetic valve 31 to control intake of the lines. The piston body 32 is disposed at one end of the activating chamber 11 opposite to the barrel 13. A rear cap 33 fixes the piston body 32 and seals the activating chamber 11. The piston body 32 has an internal piston room 321 two ends of which respectively communicate with a first intake passage 322 and a second intake passage 323. The first and second intake passages 322, 323 further respectively communicate with the intake lines of the electromagnetic valve 31. A piston rod 324 is disposed in the piston room 321. One end of the piston rod 324 extends out of the piston body 32 to fixedly connect with one end of the gunlock 2 opposite to the air passage 22. The other end of the piston rod 324 is positioned in the piston body 32 and has a push block 325. The intake of the first and second intake passages 322, 323 is variable to axially move the push block 325 within the piston room 321. The piston rod 324 is driven by the push block 325 to drive the gunlock 2 to reciprocally move within the activating chamber 11.

Referring to FIGS. 3 and 4, in a ready state, the electromagnetic valve 31 of the controlling unit 3 will control the first intake passage 322 of the piston body 32 to take in the air. At this time, the piston rod 324 drives the gunlock 2 to retreat, making front end of the gunlock 2 move backward away from the bullet-dropping port 14. Under such circumstance, a paint bullet 5 is dropped to the front end of the gunlock 2 into a ready state. When pulling the trigger 41 of the handle 4 to trigger the touch-controlled switch 44, the controlling IC 42 controls the lines of the electromagnetic valve 31 to take in the air, whereby the air goes from the second intake passage 323 of the piston body 32 into the piston room 321 for pushing the piston rod 324 to drive the gunlock 2 forward. At this time, the front end of the gunlock 2 blocks the bullet-dropping port 14 to avoid leakage of air and prevent a second paint bullet 5 from dropping so as to avoid clog. Under such circumstance, the annular groove 21 of the gunlock 2 will be moved along with the forwarded gunlock 2 to the vent 15, whereby the air in the air reservoir 12 will go through the vent 15 into the space 21 a and then go through the through holes 23 into the air passage 22 to shoot the paint bullet 5 in front of the front end of the gunlock 2. After shooting the paint bullet 5, the electromagnetic valve 31 of the controlling unit 3 will further control the first intake passage 322 of the piston body 32 to take in the air. At this time, the piston rod 324 drives the gunlock 2 to retreat, making the front end of the gunlock 2 move backward away from the bullet-dropping port 14. Under such circumstance, a second paint bullet 5 is dropped to the front end of the gunlock 2 into a ready state. Accordingly, the shooting operation can be circularly repeated. Therefore, the paint gun can continuously shoot the paint bullets 5. The controlling IC 42 serves to control the intake time of the lines of the electromagnetic valve 31 so as to control the staying time of the forwarded piston rod 324 of the piston body 32. Accordingly, the staying time of the forwarded gunlock 2 can be controlled. Therefore, the time for which the air passage 22 of the gunlock 2 communicates with the vent 15 is controllable. Accordingly, the intake of the air going from the air reservoir 12 into the air passage 22 is controllable. Therefore, the speed at which the paint bullet 5 is shot can be controlled as required.

In the above shooting structure of the paint bullet gun of the present invention, one single gunlock is used to unblock/block the bullet-dropping port and control the intake of the air going into the air passage for shooting the paint bullet. The structure of the present invention is simplified and the manufacturing and assembling cost is greatly lowered.

Moreover, in the case that a broken bullet needs to be removed, a user only needs to unscrew the rear cap and take out the gunlock to remove the broken bullet. Therefore, it is quite convenient to disassemble the structure for removing the broken bullet.

The above embodiment is only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiment can be made without departing from the spirit of the present invention. 

1. A shooting structure of a paint bullet gun, the paint bullet gun including a main body and a handle, a gunlock and a controlling unit being disposed in the main body, an air source serving to fill air into the main body, a trigger being disposed in the handle for controlling the controlling unit, the controlling unit serving to control the gunlock to reciprocally move within the main body so as to control a paint bullet to drop into the main body and control the air of the air source for shooting the paint bullet, said shooting structure being characterized in that an activating chamber is formed in the main body, the activating chamber communicating with the air source via a vent, one end of the activating chamber communicating with a barrel, a bullet-dropping port being disposed on the activating chamber near the barrel to communicate with the activating chamber, the gunlock being disposed in the activating chamber, the gunlock being a bar body, a space being defined between outer circumference of middle section of the gunlock and inner wall of the activating chamber, the space being movable along with the reciprocally movable gunlock to be aligned with the vent, one end of the gunlock being connected with the controlling unit for controlling the gunlock to reciprocally move within the activating chamber, an air passage being disposed in the gunlock, one end of the air passage extending out of the other end of the gunlock opposite to the controlling unit, the other end of the air passage extending to communicate with the space.
 2. The shooting structure of the paint bullet gun as claimed in claim 1, wherein an air reservoir is disposed in the main body in parallel to the activating chamber, the air source supplying air for the air reservoir, the activating chamber communicating with the air reservoir via the vent, the handle being disposed under the air reservoir of the main body, a controlling IC and a cell for supplying power being further disposed in the handle, a touch-controlled switch being connected between the trigger and the controlling IC, the controlling IC being connected with the controlling unit for controlling the same.
 3. The shooting structure of the paint bullet gun as claimed in claim 2, wherein the controlling unit includes an electromagnetic valve and a piston body, the electromagnetic valve being mounted on one side of the air reservoir of the main body, intake lines communicating the electromagnetic valve with the air reservoir and the piston body, the electromagnetic valve being also connected with the controlling IC in the handle for controlling the electromagnetic valve to control intake of the lines, the piston body being disposed at one end of the activating chamber opposite to the barrel, a rear cap fixing the piston body and sealing the activating chamber, the piston body having an internal piston room two ends of which respectively communicate with a first intake passage and a second intake passage, the first and second intake passages further respectively communicating with the intake lines of the electromagnetic valve, a piston rod being disposed in the piston room, one end of the piston rod extending out of the piston body to fixedly connect with one end of the gunlock opposite to the air passage, the other end of the piston rod being positioned in the piston body and having a push block, the intake of the first and second intake passages being variable to axially move the push block within the piston room, whereby the piston rod is driven by the push block to drive the gunlock to reciprocally move within the activating chamber.
 4. The shooting structure of the paint bullet gun as claimed in claim 1, wherein an annular groove is formed on outer circumference of the middle section of the gunlock, whereby the space is defined between the annular groove and the inner wall of the activating chamber, the other end of the air passage extending to a section of the gunlock, where the annular groove is formed, the wall of the section being formed with several radial through holes communicating the air passage with the space.
 5. The shooting structure of the paint bullet gun as claimed in claim 4, wherein several 0-rings are inlaid in outer circumference of the gunlock to airtight abut against inner wall of the activating chamber for avoiding leakage of air. 